Ball type built-in filter screen side pulling device
The ball-type built-in filter side extraction device uses a ball mechanism and a card plate connection to solve the problem of low filter installation and removal efficiency, achieve efficient installation and sealing of the filter, and simplify the filter maintenance and replacement process.
Patent Information
- Application Number
- CN202422552669.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The installation and removal efficiency of the existing filter pre-extraction device is low, which makes the daily maintenance and replacement of the filter inconvenient.
A ball-bearing type built-in filter side extraction device is adopted, which includes top and bottom components, a ball-bearing mechanism, a vertical reinforcement wind shield and an intermediate wind shield. The filter is supported by the ball-bearing mechanism, and multiple filters are connected by a card plate to achieve sliding installation and plug-in.
It improves the installation and disassembly efficiency of the filter, saves installation space, reduces the labor intensity of workers, ensures the sealing of the multi-layer filter, and facilitates the daily maintenance and replacement of the filter.
Smart Images

Figure CN223388720U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of air-conditioning filter screens, in particular to a ball-type built-in filter screen side extraction device. Background Art
[0002] Combined air-conditioning units are special equipment used for air purification, cooling, heating, humidification, and transportation. They are an important part of central air-conditioning systems and are widely used in commercial, medical, electronic and other industries.
[0003] The installation method of the built-in filter in the combined air-conditioning box mainly utilizes the front extraction device of the filter. In actual operation, the required single or multiple filter frame units are assembled and installed into the combined air-conditioning box, and then the single filter is installed in the single filter frame on the front side of the filter frame along the air inlet direction by fixing the four corners of the filter to obtain the required filtering device. This installation method requires workers to enter the combined air-conditioning box to operate, that is, the combined air-conditioning unit needs to reserve installation and maintenance space for workers, and the single filter is fixed at the four corners of the filter in the frame unit with bolts or spring clips. The workers' efficiency in installing and disassembling the filter is low, and the daily maintenance and replacement of the filter in the later stage is very inconvenient. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a ball-type built-in filter side extraction device to solve the problems of the existing filter front extraction device having a long functional section and low installation and disassembly efficiency.
[0005] The purpose of the utility model is to achieve the following technical solutions: This ball-type built-in filter side extraction device includes:
[0006] The top assembly includes a top windshield and a top slide plate. The top windshield is bent into an L-shaped structure. The top slide plate is also L-shaped and fixed to the side wall of the top windshield to form a top slide with an opening facing downward.
[0007] The bottom assembly is arranged symmetrically with the top assembly in an upper and lower direction, and includes a bottom wind shield and a bottom slide plate. The bottom wind shield is bent into an "L"-shaped structure, and the bottom slide plate is also in an "L"-shaped structure and fixed to the side wall of the bottom wind shield to form a bottom slide with an opening facing upward;
[0008] A ball mechanism, configured to be fixedly mounted in the bottom slideway;
[0009] A vertical reinforcing windshield plate is vertically connected between the top windshield plate and the bottom windshield plate to support the top assembly and the bottom assembly; and
[0010] The filter screen is slidably installed between the top slideway and the bottom slideway, and the bottom of the filter screen is supported by a ball mechanism.
[0011] As a further technical solution, it further includes at least one intermediate wind baffle. The intermediate wind baffle is arranged between the top wind baffle and the bottom wind baffle and is fixed to the vertical reinforcing wind baffle; two "L"-shaped intermediate slideway plates are fixed on each intermediate wind baffle, one with an upward opening and the other with a downward opening, serving as intermediate slideways. A ball mechanism is also fixedly installed on each intermediate slideway with an upward opening to achieve multi-layer arrangement of the filter screens.
[0012] As a further technical solution, the ball mechanism includes a ball cover and a ball seat. A ball groove is opened on the ball seat, and a layer of auxiliary small balls is laid in the ball groove and then the main ball is placed. The main ball is pressed against the ball seat by the ball cover, and the top of the main ball protrudes from the ball cover for contacting the filter screen. The two sides of the ball cover are fixedly installed on the intermediate slideway plate and the bottom slideway plate.
[0013] As a further technical solution, the cross-section of the vertical reinforcing wind baffle is in a "C" shape structure, and the vertical reinforcing wind baffle is evenly distributed along the length directions of the top wind baffle and the bottom wind baffle.
[0014] As a further technical solution, a clamping plate is fixed at each of the left and right ends of each filter screen. The two clamping plates on the left and right are rotationally symmetric. One end of the clamping plate is in contact with the filter screen, and the other end of the clamping plate is bent at 90° and has a gap with the outer wall of the filter screen, so that multiple filter screens are sequentially inserted through the clamping plates, and the connection part is blocked by the clamping plate and does not leak air.
[0015] The beneficial effects of the present utility model are as follows:
[0016] 1. The whole device has a compact structure, is easy to install, has a wide application range, saves installation space, and is more conducive to the daily maintenance and replacement of the filter screen in the later stage. There is no need to reserve installation and maintenance space for workers inside the air-conditioning unit;
[0017] 2. Ball mechanisms are arranged at the bottoms of the slideways. The balls are in sliding contact with the bottom of the filter screen, which can significantly reduce the labor intensity of workers when installing and disassembling the filter screen;
[0018] 3. The intermediate slideway plates can be not installed or installed in multiple pieces, adjusted according to single-layer and multi-layer filter screens, and the intermediate wind baffle plays a role in blocking wind to avoid air leakage at the middle part of the multi-layer filter screens;
[0019] 4. Multiple filter screens are connected by inserting through the clamping plates, with higher installation efficiency, and the connection part is blocked by the clamping plates and does not leak air. Description of the Drawings
[0020] Figure 1 It is a schematic side view structure diagram of the present utility model.
[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 .
[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 .
[0023] Figure 4 It is a structural diagram of the filter screen in this utility model.
[0024] Figure 5 This is a schematic diagram of the structure of the contact between the filter screen and the ball mechanism in the utility model.
[0025] Explanation of the accompanying drawings: ball mechanism 1, filter 2, top slide plate 31, bottom slide plate 32, top wind shield 41, bottom wind shield 42, middle slide plate 5, middle wind shield 6, vertical reinforcement wind shield 7, clamping plate 8, ball cover 9, ball main body ball 10, auxiliary small ball 11, ball seat 12, ball groove 13. DETAILED DESCRIPTION
[0026] The following is a detailed introduction to the present invention with reference to the accompanying drawings:
[0027] Example 1: As shown in the attached Figures 1 to 5 As shown, this ball-type built-in filter side extraction device includes a ball mechanism 1, a filter 2, a top slide plate 31, a bottom slide plate 32, a top wind shield 41, a bottom wind shield 42, an intermediate slide plate 5, an intermediate wind shield 6, a vertical reinforcement wind shield 7, a clamping plate 8, a ball cover 9, a ball main body ball 10, an auxiliary small ball 11, a ball seat 12 and a ball groove 13.
[0028] Reference Attachment Figure 1 The top wind shield 41 and the top slide plate 31 serve as the top components. The top wind shield 41 is bent 90° to form an "L"-shaped structure. The top slide plate 31 is also in an "L"-shaped structure and is fixed (can be welded or screwed) on the side wall of the top wind shield 41 to form a top slide with the opening facing downward.
[0029] The bottom windshield 42 and bottom slide plate 32 serve as the bottom assembly, arranged vertically symmetrically with the top assembly. The bottom windshield 42 is bent 90° to form an L-shaped structure. The bottom slide plate 32 is also L-shaped and fixed (either welded or threaded) to the sidewall of the bottom windshield 42, forming an upward-opening bottom slide. At least one set of ball bearing mechanisms 1 is fixedly mounted on the bottom slide. The number of ball bearing mechanisms 1 can be adjusted based on the number and length of the filter screens 2.
[0030] like Figure 2 、 3As shown, the cross-section of the vertical reinforcing wind baffle 7 is in a "C" shape. There are three vertical reinforcing wind baffles 7 evenly distributed along the length directions of the top wind baffle 41 and the bottom wind baffle 42. Each vertical reinforcing wind baffle 7 is vertically connected between the top wind baffle 41 and the bottom wind baffle 42 to support the top component and the bottom component.
[0031] A middle wind baffle 6 is fixedly installed horizontally on the vertical reinforcing wind baffle 7 (in this embodiment, there is one, and it can also be a greater number and evenly distributed up and down). The middle wind baffle 6 is arranged between the top wind baffle 41 and the bottom wind baffle 42. Two "L" - shaped middle slide plates 5 are fixed on each middle wind baffle 6, one with an upward opening and the other with a downward opening, serving as middle slides. At least one set of ball mechanisms 1 is also fixedly installed on each upward - opening middle slide, as Figure 1 shown, to achieve the double - layer arrangement of the filter screen 2. In this embodiment, a double - layer filter screen is adopted, that is, the upper - layer filter screen 2 is installed between the top slide and the upward - opening middle slide, and at the same time, the lower - layer filter screen 2 is installed between the bottom slide and the downward - opening middle slide. It can also be a multi - layer filter screen, and only corresponding middle wind baffles 6 and middle slide plates 5 need to be added.
[0032] Refer to the appendix Figure 5 , the ball mechanism 1 includes a ball cover 9 and a ball seat 12. A ball groove 13 is opened on the ball seat 12. A layer of auxiliary small balls 11 is laid in the ball groove 13 and then the ball main body ball 10 is placed. The ball main body ball 10 is pressed against the ball seat 12 by the ball cover 9, and the top of the ball main body ball 10 exposes from the ball cover 9. The exposed part rolls into contact with the filter screen 2. Both sides of the ball cover 9 are fixedly installed on the middle slide plate 5 and the bottom slide plate 32 by bolts.
[0033] As Figure 4 shown, a clamping plate 8 is fixed at both the left and right ends of each filter screen 2. The left and right clamping plates 8 are rotationally symmetric. One end of the clamping plate 8 is in contact with the filter screen 2, and the other end of the clamping plate 8 is bent at 90° and there is a certain gap between it and the outer wall of the filter screen 2. This gap is only for the insertion of another clamping plate 8 (to fill the gap), so that multiple filter screens 2 are sequentially inserted through the clamping plates 8, and at the same time, the connection part is blocked by the clamping plates 8 and does not leak air.
[0034] Embodiment 2: The difference from Embodiment 1 is that a single - layer filter screen arrangement is adopted, that is, the middle slide plate 5 and the middle wind baffle 6 are no longer provided, and the filter screen 2 is directly installed between the top slide and the bottom slide.
[0035] The working process of the present utility model:
[0036] When arranging multiple layers of filter screens, screw the top and bottom slide plates 31 and 32 to the corresponding sides of the top and bottom windshields 41 and 42, respectively, to form concave-shaped top and bottom slides. Secure the two middle slide plates 5 to the surface of the middle windshield 6, forming a concave-shaped middle slide. Screw the ball mechanism 1 (ball cover 9) evenly within the concave-shaped slides according to the ball bearing capacity and the width of the filter screen 2. Finally, screw the top and bottom slide plates 31, 32, and middle slide plates 5 to the vertical reinforcement windshield 7 to create the required placement space for the filter screen 2. The entire filter screen frame is now complete.
[0037] A single filter screen 2 can be placed directly on the ball bearing mechanism 1 (ball bearing body 10). When assembling multiple filter screens 2, first place one filter screen 2 on the ball bearing mechanism 1 at the end of the "concave" shaped slideway. The next filter screen 2 is then inserted using the two retaining plates 8 (which are the same height and continuous with the filter screen 2) and pushed into the "concave" shaped slideway via the ball bearing mechanism 1. The remaining filter screens 2 are then assembled in sequence. If a single layer of filter screen 2 is used, the middle slide plate 5 and middle windshield 6 can be omitted.
[0038] This ball-bearing built-in filter side-draw device is suitable for conventional G3, G4, F5, F6, F7, F8, and F9 plate and bag filters. The built-in clamping plate prevents air leakage at the filter connections, and the connected filter screens maintain a strong integrity within the slideway. When too many single-layer filters are spliced together, resulting in an excessively long effective filter length, unassisted filter extraction creates high friction and is difficult and laborious. Installing the ball bearing at the bottom of the filter not only makes installation quick and easy, but also saves labor and maintenance costs.
[0039] It is understandable that for those skilled in the art, any equivalent replacement or change of the technical solution and the concept of the utility model should fall within the scope of protection of the claims attached to the utility model.
Claims
1. A ball-type built-in filter side extraction device, characterized in that: Comprising: A top component, including a top wind deflector (41) and a top slide plate (31), the top wind deflector (41) is bent into an "L" - shaped structure, and the top slide plate (31) is also in an "L" - shaped structure and fixed on the side wall of the top wind deflector (41), forming a top slide with the opening facing downwards; A bottom component, symmetrically arranged above and below with the said top component, including a bottom wind deflector (42) and a bottom slide plate (32), the bottom wind deflector (42) is bent into an "L" - shaped structure, and the bottom slide plate (32) is also in an "L" - shaped structure and fixed on the side wall of the bottom wind deflector (42), forming a bottom slide with the opening facing upwards; A ball mechanism (1) for fixedly installing in the said bottom slide; A vertical reinforcing wind deflector (7), connected between the top wind deflector (41) and the bottom wind deflector (42) along the vertical direction, for supporting the said top component and the said bottom component; And A filter screen (2), slidably installed between the top slide and the bottom slide, and the bottom of the filter screen (2) is supported by the ball mechanism (1).
2. The ball-type built-in filter side extraction device according to claim 1, characterized in that: It further includes at least one intermediate wind deflector (6), the intermediate wind deflector (6) is arranged between the top wind deflector (41) and the bottom wind deflector (42) and fixed to the vertical reinforcing wind deflector (7); two "L" - shaped intermediate slide plates (5) are fixed on each intermediate wind deflector (6), one with the opening facing upwards and the other with the opening facing downwards, serving as intermediate slides, and a ball mechanism (1) is also fixedly installed on each intermediate slide with the opening facing upwards, to achieve a multi - layer arrangement of the filter screen (2).
3. The ball-type built-in filter side extraction device according to claim 2, characterized in that: The said ball mechanism (1) includes a ball cover (9) and a ball seat (12), a ball groove (13) is opened on the ball seat (12), a layer of auxiliary small balls (11) is laid in the ball groove (13) and then the main ball (10) is placed, the main ball (10) is pressed against the ball seat (12) by the ball cover (9), and the top of the main ball (10) protrudes from the ball cover (9) for contacting the filter screen (2), and both sides of the ball cover (9) are fixedly installed on the intermediate slide plate (5) and the bottom slide plate (32).
4. The ball-type built-in filter side extraction device according to claim 1, characterized in that: The cross - section of the said vertical reinforcing wind deflector (7) is in a "匚" - shaped structure, and the vertical reinforcing wind deflector (7) is evenly distributed along the length directions of the top wind deflector (41) and the bottom wind deflector (42).
5. The ball-type built-in filter side extraction device according to claim 1, characterized in that: A clamping plate (8) is fixed at both the left and right ends of each filter screen (2), the two clamping plates (8) on the left and right are rotationally symmetric, one end of the clamping plate (8) is fitted to the filter screen (2), and the other end of the clamping plate (8) is bent by 90° and there is a gap between it and the outer wall of the filter screen (2), so that multiple filter screens (2) are sequentially inserted through the clamping plates (8), and the connection part is blocked by the clamping plates (8) without air leakage.